Domus de Janas are a type of pre-Nuragic rock-cut chamber tomb found in Sardinia. They consist of several chambers quarried out by the people of the San Ciriaco through Ozieri cultures and subsequent cultures, resembling houses in their layout.

The Pre-Nuragic period refers to the prehistory of Sardinia from the Paleolithic until the middle Bronze Age, when the Nuragic civilization flourished on the island.